Complete Jest tests

Author: Frumentius-Rev

implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js

@@ -3,6 +3,28 @@ import { getAngleType } from "../implement/1-get-angle-type.js";
 // TODO: Write tests in Jest syntax to cover all cases/outcomes,
 // including boundary and invalid cases.
 
+test("90 degrees is a right angle", () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
+
+test("obtuse angle", () => {
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+});
+
+test("180 degrees is a straight angle", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
+
+test("Reflex angle", () => {
+  expect(getAngleType(270)).toEqual("Reflex angle");
+});
+
+test("Invalid angle", () => {
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(-10)).toEqual("Invalid angle");
+});
+
 // Case 1: Acute angles
 test(`should return "Acute angle" when (0 < angle < 90)`, () => {
   // Test various acute angles, including boundary cases

implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js

@@ -1,8 +1,21 @@
 import { isProperFraction } from "../implement/2-is-proper-fraction.js";
 
 // TODO: Write tests in Jest syntax to cover all combinations of positives, negatives, zeros, and other categories.
+test(`should return true for proper fractions`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+  expect(isProperFraction(2, 5)).toEqual(true);
+});
+
+test(`should return false when numerator is not smaller`, () => {
+  expect(isProperFraction(5, 5)).toEqual(false);
+  expect(isProperFraction(7, 5)).toEqual(false);
+});
 
 // Special case: numerator is zero
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+test(`should return true when numerator is zero`, () => {
+  expect(isProperFraction(0, 5)).toEqual(true);
+});

implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js

@@ -1,12 +1,30 @@
 import { getCardValue } from "../implement/3-get-card-value.js";
 
-// TODO: Write tests in Jest syntax to cover all possible outcomes.
+test("Should return 2 for a number card", () => {
+  expect(getCardValue("2♥")).toEqual(2);
+});
+
+test("Number card (2-10)", () => {
+  expect(getCardValue("7♦")).toEqual(7);
+  expect(getCardValue("4♣")).toEqual(4);
+});
+
+test("Face Cards (J, Q, K)", () => {
+  expect(getCardValue("J♣")).toEqual(10);
+  expect(getCardValue("Q♦")).toEqual(10);
+  expect(getCardValue("K♥")).toEqual(10);
+});
 
 // Case 1: Ace (A)
 test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
+test("Invalid cards throw an error", () => {
+  expect(() => getCardValue("2x")).toThrow();
+  expect(() => getCardValue(invalid)).toThrow();
+});
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
@@ -15,4 +33,3 @@ test(`Should return 11 when given an ace card`, () => {
 // To learn how to test whether a function throws an error as expected in Jest,
 // please refer to the Jest documentation:
 // https://jestjs.io/docs/expect#tothrowerror
-